Results 211 to 220 of about 476,899 (295)

High‐Energy Femtosecond All‐Fiber Laser Systems in 1.7–1.8 μm Using a Normal‐Dispersion Tm‐Doped Fiber

open access: yesAdvanced Photonics Research, EarlyView.
High‐energy ultrafast all‐fiber lasers are demonstrated in the 1.7–1.8 μm range using a novel Tm‐doped fiber with depressed cladding for dispersion tailoring and short‐pass filtering. A parabolic core enhances optical gain, overcoming poor gain overlap in conventional depressed cladding fibers.
Shaoxiang Chen   +5 more
wiley   +1 more source

Modal Theory of Phase‐Modulated and Frequency‐Shifting Ring Cavities

open access: yesAdvanced Photonics Research, EarlyView.
We present a theoretical and experimental characterization of the optical modes of dispersionless ring cavities with phase modulators or frequency shifters. Their response to arbitrary modulation acts as a filter for phase‐modulated modes that determine the optical output of passive resonators and lasers. This provides a general framework for analyzing
Miguel Cuenca   +2 more
wiley   +1 more source

Hippocampal phase precession may be generated by chimera dynamics. [PDF]

open access: yesFront Neural Circuits
Masoliver M, Davidsen J, Nicola W.
europepmc   +1 more source

VO2 Nanocomposite Thin Films Integrated on Glass Substrates for Tunable Properties

open access: yesAdvanced Photonics Research, EarlyView.
This work explores tuning the metal‐to‐insulator transition and optical properties through a novel multifaceted approach using both defect engineering and energy band restructuring. VO2‐Au nanocomposite and VO2 thin films are grown on glass with ZnO buffers using pulsed laser deposition.
Claire A. Mihalko   +10 more
wiley   +1 more source

Experimental realization of para-particle oscillators. [PDF]

open access: yesSci Rep
Huerta Alderete C   +5 more
europepmc   +1 more source

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

open access: yesAdvanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida   +3 more
wiley   +1 more source

Strong Resonant Enhancement in Polarization Anisotropy in Third Harmonic Generation from MoS2 Disks with Subtle Structural Ellipticity

open access: yesAdvanced Photonics Research, EarlyView.
Strong resonant amplification in polarization anisotropy in third harmonic generation (THG) response from isolated MoS2 disks with small structural ellipticity introduced during fabrication is reported. This is attributed to the high refractive index of the MoS2 disk that supports characteristic anapole resonances combined with the cubic dependence of ...
Asish Prosad   +3 more
wiley   +1 more source

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